Chemical & Biomedical Imaging,
Journal Year:
2023,
Volume and Issue:
1(3), P. 220 - 233
Published: May 18, 2023
Organic
polymethine
fluorophores
with
emission
in
the
NIR-II
window
(1000–1700
nm)
are
receiving
enormous
attention
biomolecular
medicine
and
bioimaging,
attributed
to
high
absorption
coefficients,
bright
emission,
excellent
biocompatibility,
molecule
adjustability.
Recently,
researchers
have
devoted
significant
effort
designing
improving
making
notable
progress
fluorescence
imaging
performance.
This
review
summarizes
recent
developments
molecular
engineering
design
mentality
of
probes
highlights
their
extensive
bioimaging
biosensing
applications.
Furthermore,
we
elucidate
potential
challenges
perspectives
these
dyes
chemical
biomedicine
imaging,
which
may
stimulate
further
development
high-performance
dye
contrast
agents
for
future
clinical
ACS Nano,
Journal Year:
2023,
Volume and Issue:
17(21), P. 20825 - 20849
Published: Nov. 3, 2023
Understanding
the
in
vivo
transport
of
nanoparticles
provides
guidelines
for
designing
nanomedicines
with
higher
efficacy
and
fewer
side
effects.
Among
many
factors,
size
plays
a
key
role
controlling
their
behaviors
due
to
existence
various
physiological
thresholds
within
body
size-dependent
nano-bio
interactions.
Encouraged
by
evolving
discoveries
nanoparticle-size-dependent
biological
effects,
we
believe
that
it
is
necessary
systematically
summarize
size-scaling
laws
nanoparticle
vivo.
In
this
review,
summarized
effect
on
along
journey
body:
begin
administration
via
different
delivery
routes,
followed
targeting
intended
tissues
including
tumors
other
organs,
eventually
clearance
through
liver
or
kidneys.
We
outlined
tools
investigating
as
well.
Finally,
discussed
how
may
leverage
tackle
some
challenges
nanomedicine
translation
also
raised
important
size-related
questions
remain
be
answered
future.
Science,
Journal Year:
2024,
Volume and Issue:
383(6680), P. 326 - 330
Published: Jan. 18, 2024
Metal
nanoclusters
have
emerged
as
promising
near-infrared
(NIR)-emissive
materials,
but
their
room-temperature
photoluminescence
quantum
yield
(PLQY),
especially
in
solution,
is
often
low
(<10%).
We
studied
the
photophysics
of
Au
The
increasing
demand
for
high-contrast
biological
imaging,
non-destructive
testing,
and
infrared
night
vision
can
be
addressed
by
the
development
of
high-performance
NIR
light-emitting
materials.
Unlike
lanthanide
(Ln3+)
with
sharp-line
multiplets
isolated
Cr3+
NIR-I
emission,
this
study
reports
first-ever
NIR-II
broadband
luminescence
based
on
intervalence
charge
transfer
(IVCT)
Cr3+-Cr3+
aggregation
in
gallate
magentoplumbite.
In
particular,
LaMgGa11O19:0.7Cr3+
exhibits
dual-emission
(NIR-I,
890
nm
NIR-II,
1200
nm)
a
full
width
at
half
maximum
(FWHM)
626
under
450
blue
LED
excitation.
Moreover,
anti-thermal
quenching
behavior
(432%
@
290
K),
attributed
to
energy
among
multiple
centers.
Cryogen
absorption
spectra,
lifetimes
decay
(2.3
ms),
electron
paramagnetic
experiments
reveal
→
Cr2+-Cr4+
IVCT
transition.
application
imaging
as
an
optical
contrast
agent,
is
demonstrated.
This
work
provides
new
insights
into
UV-NIR
excitation
aggregation.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
124(2), P. 554 - 628
Published: Nov. 22, 2023
In
vivo
imaging
technologies
have
emerged
as
a
powerful
tool
for
both
fundamental
research
and
clinical
practice.
particular,
luminescence
in
the
tissue-transparent
near-infrared
(NIR,
700–1700
nm)
region
offers
tremendous
potential
visualizing
biological
architectures
pathophysiological
events
living
subjects
with
deep
tissue
penetration
high
contrast
owing
to
reduced
light–tissue
interactions
of
absorption,
scattering,
autofluorescence.
The
distinctive
quantum
effects
nanocrystals
been
harnessed
achieve
exceptional
photophysical
properties,
establishing
them
promising
category
luminescent
probes.
this
comprehensive
review,
between
light
tissues,
well
advantages
NIR
imaging,
are
initially
elaborated.
Subsequently,
we
focus
on
achieving
improved
by
optimizing
performance
nanocrystal
fluorophores.
ingenious
design
strategies
probes
discussed,
along
their
respective
biomedical
applications
versatile
modalities.
Finally,
thought-provoking
reflections
challenges
prospects
future
translation
nanocrystal-based
wisely
provided.
Journal of the American Chemical Society,
Journal Year:
2023,
Volume and Issue:
145(47), P. 25705 - 25715
Published: Nov. 16, 2023
The
ever-increasing
threats
of
multidrug-resistant
bacteria
and
their
biofilm-associated
infections
have
bred
a
desperate
demand
for
alternative
remedies
to
combat
them.
Near-infrared
(NIR)-absorbing
photothermal
agent
(PTAs)-mediated
therapy
(PTT)
is
particularly
attractive
biofilm
ablation
thanks
its
superiorities
noninvasive
intervention,
satisfactory
antibacterial
efficiency,
less
likelihood
develop
resistance.
Herein,
three
butterfly-shaped
aggregation-induced
emission
luminogens
(AIEgens)
with
balanced
nonradiative
decay
(for
conducting
PTT)
radiative
supplying
fluorescence
in
the
NIR-II
optical
window)
are
rationally
designed
imaging-assisted
obliteration
bacterial
biofilms.
After
being
encapsulated
into
cationic
liposomes,
AIEgens-fabricated
nanoparticles
can
eradicate
wide
spectrum
biofilms
formed
by
Gram-positive
(methicillin-resistant
Staphylococcus
aureus
Enterococcus
faecalis)
Gram-negative
(Escherichia
coli
Pseudomonas
aeruginosa)
upon
an
808
nm
laser
irradiation.
In
vivo
experiments
firmly
demonstrate
that
AIE
liposomes
excellent
biocompatibility
perform
well
both
P.
aeruginosa
biofilm-induced
keratitis
mouse
model
MSRA
skin
infection
model.
Chemical Reviews,
Journal Year:
2023,
Volume and Issue:
123(24), P. 13966 - 14037
Published: Nov. 22, 2023
Phosphorescence,
characterized
by
luminescent
lifetimes
significantly
longer
than
that
of
biological
autofluorescence
under
ambient
environment,
is
great
value
for
biomedical
applications.
Academic
evidence
fluorescence
imaging
indicates
virtually
all
metrics
(sensitivity,
resolution,
and
penetration
depths)
are
improved
when
progressing
into
wavelength
regions,
especially
the
recently
reported
second
near-infrared
(NIR-II,
1000–1700
nm)
window.
Although
emission
probes
does
matter,
it
not
clear
whether
guideline
"the
wavelength,
better
effect"
still
suitable
developing
phosphorescent
probes.
For
tissue-specific
bioimaging,
long-lived
probes,
even
if
they
emit
visible
phosphorescence,
enable
accurate
visualization
large
deep
tissues.
studies
dealing
with
bioimaging
tiny
architectures
or
dynamic
physiopathological
activities,
prerequisite
rigorous
planning
long-wavelength
being
aware
cooperative
contribution
long
wavelengths
improving
spatiotemporal
depth,
sensitivity
bioimaging.
In
this
Review,
emerging
molecular
engineering
methods
room-temperature
phosphorescence
discussed
through
lens
photophysical
mechanisms.
We
highlight
roles
from
to
NIR-II
windows
toward
bioapplications.
To
appreciate
such
advances,
challenges
prospects
in
rapidly
growing
described.